Phosphate glass brings together an extended lifetime of Er3+ upper laser stage with efficient Power transfer involving Yb3+ and Er3+ ions and reduced upconversion losses, Hence offering successful Procedure in passively Q-switched diode-pumped and flash-lump pumped lasers used in variety-finders. language �?中国 韩国 韩国 韩国 韩国 韩国  We report https://devinbcczv.theisblog.com/33495639/details-fiction-and-er-yb-yab-crystal